need help with pin outs for ADM3202 chip please

[Marcus von Cube]

(01-26-2014 12:09 AM)Bruce Larrabee Wrote:  I'm building a programming cable for the w34s. Can anyone tell me which signals to connect to the ADM3202 chips pins 11,12,13 and 14.

I think your pinout question has been answered by Paul. The reason why I discourage the use of RS232 level converters (as used by the original cable) is power consumption. HP did a less then famous job on this by connecting the power input of the cable (to feed the converter) directly to VBat. This is convenient because no external power is requested but it's fatal for the batteries of the poor calculator if you just leave it plugged in for some time because it draws power from the batteries even if the calculator is turned off.

USB simply avoids all the hassle and the FTDI chips have proved to be reliable in combination with the programming boot loader.